When the Family Cross course hasn't been installed, the run it occupies is known as Lower Canaan.
You'll find it by taking a left off of Upper Treasury and Fallaway under the Paradise Express.
The run is sometimes groomed and has some fun rollers to pop off.
If the Family Cross course is up, you'll have to follow the rope line to your left back onto Lower Forest Queen.
If the course isn't up you can ski over rolling powder terrain under the lift all the way the bottom or Paradise Express or the Paradise Warming House.